Table 3.

Correlations between patients' APACHE II scores and the family members' GSDS, NRS-F and BAI

		Admission APACHE II	Survey APACHE II	GSDS	BAI	NRSF Fatigue
Admission APACHE II	Pearson Correlation	1	0.636	0.106	0.026	0.059
	P-value	--	<0.001	0.154	0.402	0.286
Survey APACHE II	Pearson Correlation	0.636	1	0.253	0.197	0.202
	P-value	<0.001	--	0.007	0.028	0.025
GSDS	Pearson Correlation	0.106	0.253	1	0.513	0.554
	P-value	0.154	0.007	--	<0.001	<0.001
BAI	Pearson Correlation	0.026	0.197	0.513	1	0.587
	P-value	0.402	0.028	<0.001	--	<0.001
NRS-F	Pearson Correlation	0.059	0.202	0.554	0.587	1
	P-value	0.286	0.025	<0.001	<0.001	--

This table shows correlations between the patients' APACHE II scores at the time of admission and at the time of questionnaire completion and the family members' GSDS, NRS-F, and BAI scores. All P-values are one-tailed.

Admission APACHE II is the APACHE II score at the time of patient's admission to the ICU. Survey APACHE II is the APACHE II score on the day that the family member completed the questionnaire. BAI, Beck Anxiety Index; GSDS, General Sleep Disturbance Scale; NRS-F, Lee Fatigue Scale